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image: Sperm Shadows

Sperm Shadows

By | January 1, 2013

Tracking the shadows cast by sperm reveals their precise 3-D movements.

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image: Evolution by Splicing

Evolution by Splicing

By | December 20, 2012

Comparing gene transcripts from different species reveals surprising splicing diversity.

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image: Bones Get in Her Eyes

Bones Get in Her Eyes

By | December 20, 2012

After undergoing untested cosmetic surgery that uses stem cells to rejuvenate skin, a woman grew bone fragments in the flesh around one of her eyes.

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image: Real-time Outbreak Sequencing

Real-time Outbreak Sequencing

By | December 19, 2012

Sequencing the whole genomes of bacterial pathogens as they spread among hospital patients and health care workers could transform the control of infectious disease.

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image: New Biological Pacemaker

New Biological Pacemaker

By | December 18, 2012

In guinea pigs, the insertion of a single gene can transform ordinary heart cells into pacemaker cells that regulate cardiac rhythm.

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image: Cancer More Diverse than Its Genetics

Cancer More Diverse than Its Genetics

By | December 13, 2012

Tumor cells can exhibit different behaviors despite being genetically indistinguishable.

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image: Conserved Chromatin?

Conserved Chromatin?

By | December 10, 2012

Archaea packages DNA around histones in a similar way to eukaryotes, suggesting that fitting a large genome into a small space was not the original role of chromatin.

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image: Detailing Color Vision

Detailing Color Vision

By | December 6, 2012

Scientists engineer a spectrum of artificial pigments to understand how animals see in color.

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image: Fat's Immune Sentinels

Fat's Immune Sentinels

By | December 1, 2012

Certain immune cells keep adipose tissue in check by helping to define normal and abnormal physiological states.

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image: How Plants Feel

How Plants Feel

By | December 1, 2012

A hormone called jasmonate mediates plants' responses to touch and can boost defenses against pests.

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